[ckan-dev] Prelim SPARQL endpoint - request for test

Pierre-Yves Vandenbussche py.vandenbussche at gmail.com
Thu Aug 16 08:40:40 UTC 2012


Ross,

It doesn't seem that the endpoint contains an explicit information on the
accessURL format such as SPARQL endpoint.
Could you please help me find out how to fetch this information using the
last release ?

Thanks,

Pierre-Yves Vandenbussche.


On Mon, Jul 9, 2012 at 7:24 PM, Pierre-Yves Vandenbussche <
py.vandenbussche at gmail.com> wrote:

> Great ! You could warn me when this release will be effective ?
>
> Thank you,
>
> Pierre-Yves Vandenbussche.
>
>
>
> On Mon, Jul 9, 2012 at 7:16 PM, Ross Jones <ross.jones at okfn.org> wrote:
>
>> Hi,
>>
>> Apologies, but it appears I missed the 1.7 release window with this fix,
>> and so I am expecting this to get into the new 1.8 branch which is due very
>> soon.  The change is in the master branch at
>> https://github.com/okfn/ckan/blob/master/ckan/templates/package/read.rdf#L22so it should be up on the datahub soon.
>>
>> Ross.
>>
>> On 9 Jul 2012, at 17:21, Pierre-Yves Vandenbussche wrote:
>>
>> Hello Ross,
>>
>> I come back to you concerning the Datahub sparql endpoint. Have you added
>> the information of format (dct:format) about a distribution ? Unless I
>> missed something, I don't see this information.
>> 5 persons asked me about the SPARQL endopoint status tool but I do not
>> have any fresh data since march.
>>
>> All the best,
>>
>> Pierre-Yves Vandenbussche.
>>
>>
>> On Wed, May 23, 2012 at 2:48 PM, Ross Jones <ross.jones at okfn.org> wrote:
>>
>>>
>>> It's likely to change once I've got access to DNS to setup the CNAME
>>> (but it will only be a CNAME). Currently ruminating on
>>> semantic.datahub.io/semantic.thedatahub.org
>>>
>>> I'll chase that up now.
>>>
>>> Ross
>>>
>>>
>>> On 23 May 2012, at 13:40, Pierre-Yves Vandenbussche wrote:
>>>
>>> That's a very good news :)
>>>
>>> Is the SPARQL endpoint URL still
>>> http://linkeddata.openlinksw.com/sparql  ? And is this URL stable or is
>>> it subject to changes ?
>>>
>>> Thank you.
>>>
>>> Pierre-Yves Vandenbussche.
>>>
>>>
>>> On Wed, May 23, 2012 at 2:35 PM, Ross Jones <ross.jones at okfn.org> wrote:
>>>
>>>> Hi,
>>>>
>>>> Thanks for the gentle reminder, I've implemented this in a branch, and
>>>> I'll merge the commit into master today so that it appears on the next
>>>> datahub.io update.
>>>>
>>>> Ross
>>>>
>>>>
>>>> On 23 May 2012, at 13:28, Pierre-Yves Vandenbussche wrote:
>>>>
>>>> Hi Ross,
>>>>
>>>> if you want me to test some intermediate version, I can.
>>>> This endpoint is very useful and is somehow crucial for a semantic
>>>> dataset catalogue.
>>>>
>>>>  Best,
>>>>
>>>> Pierre-Yves Vandenbussche.
>>>>
>>>>
>>>> On Fri, May 11, 2012 at 1:31 PM, Ross Jones <ross.jones at okfn.org>wrote:
>>>>
>>>>> Hi,
>>>>>
>>>>> Yes, I think I can add that.  It probably won't be right now, and
>>>>> we'll need to arrange for the new dumps to include this but it'll get added
>>>>>  to the RDF.  I've added a ticket at http://trac.ckan.org/ticket/2379 (assigned
>>>>> to myself) and will try to get to it in the next sprint.
>>>>>
>>>>> Good feedback.  Keep it coming :)
>>>>>
>>>>> Ross
>>>>>
>>>>>
>>>>> On 11 May 2012, at 12:22, Pierre-Yves Vandenbussche wrote:
>>>>>
>>>>> Hello Ross,
>>>>>
>>>>> So sweet to hear that the SPARQL Endpoint is back !!! Thank you Ross.
>>>>>
>>>>>  My app SPARQL Endpoint Status will rely on you endpoint :
>>>>> http://labs.mondeca.com/sparqlEndpointsStatus/index.html
>>>>>
>>>>> In my use case I need to fetch every sparql endpoint associated to a
>>>>> dataset. With the previous version of your endpoint, I was doing this query:
>>>>> SELECT DISTINCT ?dataset ?endpoint ?title ?identifier WHERE {
>>>>>  ?dataset <http://www.w3.org/ns/dcat#distribution> ?distribution.
>>>>> ?distribution <http://purl.org/dc/terms/format> [ <
>>>>> http://moat-project.org/ns#taggedWithTag> [ <
>>>>> http://moat-project.org/ns#name> "api/sparql" ] ].
>>>>>  ?distribution <http://www.w3.org/ns/dcat#accessURL> ?endpoint.
>>>>> ?dataset <http://purl.org/dc/terms/title> ?title.
>>>>>  ?dataset <http://purl.org/dc/terms/identifier> ?identifier.
>>>>> } ORDER BY ?title
>>>>>
>>>>> Using your new version,dcterms:title of a dataset is now a rdfs:label
>>>>> ... OK
>>>>>
>>>>> Unfortunately, I don't have the information of "api/sparql"  anymore.
>>>>> So I can not differentiate between a dump file and a SPARQL endpoint...
>>>>>
>>>>> Can you add this information  ?
>>>>>
>>>>> If you need a more complete feedback, just ask :)
>>>>>
>>>>> Pierre-Yves Vandenbussche.
>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>
>>>
>>
>>
>
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